# 坂道シリアル番号入力支援 vs 郵便番号さがし

The clearest difference is ads: 坂道シリアル番号入力支援 at none against 郵便番号さがし's shown. 郵便番号さがし's advantage is update cadence (fortnightly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 坂道シリアル番号入力支援 sells 1 in-app purchase, starting at $0.29 per 7 days and 郵便番号さがし sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

坂道シリアル番号入力支援 ships an update monthly, 郵便番号さがし fortnightly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 坂道シリアル番号入力支援 | 郵便番号さがし |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 1 MB | 23 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FLUFF](https://appshunter.io/developer/1854624518) | [YU KORIKI](https://appshunter.io/developer/6776222963) |

## What reviewers say

### 坂道シリアル番号入力支援

[App page](https://appshunter.io/ios/app/id6755572224)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.29 | per 7 days |


### 郵便番号さがし

[App page](https://appshunter.io/ios/app/japan-postal-code/id6808419083)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を非表示にする | $1.99 | one-time |


## Frequently asked questions

### Is 坂道シリアル番号入力支援 free?

坂道シリアル番号入力支援 is free to download, with in-app purchases available.

### Is 郵便番号さがし free?

郵便番号さがし is free to download, with in-app purchases available.

### Do 坂道シリアル番号入力支援 or 郵便番号さがし have ads?

郵便番号さがし shows ads; 坂道シリアル番号入力支援 does not.

### Which is updated more often, 坂道シリアル番号入力支援 or 郵便番号さがし?

坂道シリアル番号入力支援 ships an update monthly, and 郵便番号さがし fortnightly. Most recently, 坂道シリアル番号入力支援 was updated on October 25, 2026 and 郵便番号さがし on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*